Israel got to live combat test their drones recently in Armenia. The Armenians took heavy casualties as a result. I guess now the Iranians wanted to test their own drones in live combat conditions. They probably sold them for a deep discount just to get them into action. These drones are about the same as the Israeli drones. Cheap, one shot one kill, and you can control and aim them via video. Large enough to damage, small enough to be difficult to shoot down. Coming next, air superiority drones, for attack and defense. Drones that can intercept and kill enemy drones. Necessity is the mother of invention.